Staring at the Shadow and Devouring the Light

There are several questions. First, the comet must be large enough, regardless of mass or density. Ice comets will evaporate a lot as they approach the sun, and only then will they have a tail visible to the naked eye. Pure ironstone comets are simply not bright enough. Therefore, it is presumed to be an iron stone or stone-iron core with an outer ice structure. Second, the momentum of the comet must be large enough to ensure that it can still smash into the sun despite being blown by the solar wind. Third, the angle at which this comet visits the solar system must be tricky enough. You must know that momentum means high speed, and high speed means that if its perihelion is too far away from the sun, it may no longer be captured by the sun after one visit and continue to wander in space. Therefore, according to the description in the book, this comet is a dwarf planet with a large mass that cuts in from the outer solar system at an extremely tricky angle at high speed and is captured by the sun at a position very close to the sun. At the same time, because it was captured, its rotation is extremely fast and its orbit is extremely eccentric. It can be considered that the perihelion is within the orbit of Mercury. Then don't do this. A celestial body with a maximum mass of possibly the size of a dwarf planet is inserted into the inner solar system. The orbits of all the major planets in the solar system will be disturbed. If the earth deviates by a few minutes, the temperature of the atmosphere will explode. Is this wave just the sun ejecting coronal material? Create an electromagnetic storm? This wave, this wave is the end of the world, a mass extinction of organisms.